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jvs:fscan:manual:chapter3:winkeys:roi [2011/03/31 14:49] 127.0.0.1 external edit |
jvs:fscan:manual:chapter3:winkeys:roi [2023/02/23 18:43] (current) |
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- | 10 | + | 10 |
11 area -- perimeter and all internal points | 11 area -- perimeter and all internal points | ||
12 shell -- perimeter and all internal points | 12 shell -- perimeter and all internal points | ||
Line 137: | Line 137: | ||
VAL: Value to write if (FLG & 4) | VAL: Value to write if (FLG & 4) | ||
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- | | + | For surfaces: |
- | | + | 10,1h expand path to geodesic list |
- | | + | |
- | | + | |
+ | | ||
+ | For images: | ||
+ | | ||
+ | expand path by interpolation | ||
+ | FLG 1 - reuse same ROI | ||
+ | 2 - interpolate contours for intervening slices | ||
+ | ? - add node for every voxel DIST step (default) | ||
+ | DIST - distance between node steps in mm (default: voxel width) | ||
+ | - Flg 2: distance between contours in mm (default: voxel depth) | ||
+ | | ||
+ | sample image perpendicular to path at each node; | ||
+ | find edge where image intensity crosses VAL boundary, | ||
+ | move node to edge if found; flag nodes where no edge found | ||
+ | FLG 1 - reuse same ROI (default is create new ROI) | ||
+ | 2 - edge is intensity change >= VAL % | ||
+ | 4 - only look for edge on one side | ||
+ | | ||
+ | 8 - swap search directions (look first on right side of path) | ||
+ | | ||
+ | 16 - first jump away from search direction then search (assumes 4) | ||
+ | VAL edge intensity value (default current Thresh value, or 1 if Thresh==0) | ||
+ | | ||
+ | FLG 1 - reuse same ROI (default is create new ROI) | ||
+ | ? - remove non-edge nodes (after 10,2h cmd) | ||
+ | 2 - remove kinks (where path doubles back on itself) | ||
+ | 4 - remove outliers (where path jumps | ||
+ | 8 - smooth regardless of distance (default: smooth small jumps) | ||
+ | DIST | ||
+ | | ||
+ | This creates a contour around the border of the image | ||
+ | | ||
+ | Note: this is inverse of 9h cmd. | ||
+ | FLG 1 - inside voxels have values >= VAL (default) | ||
+ | 2 - inside voxels have values <= VAL | ||
+ | 3 - edge is intensity drop >= VAL | ||
+ | 4 - edge is intensity increase >= VAL | ||
+ | 5 - edge is intensity drop >= VAL % | ||
+ | 6 - edge is intensity increase >= VAL % | ||
+ | VAL edge intensity value (default current Thresh value, or 1 if Thresh==0) | ||
+ | PLANE is 0,1,2 for which image plane x,y,z to draw contours | ||
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